Note 10 - Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Cost of revenues	$	2	$	2	$	3	$	4
Selling expense		2		2		4		4
Engineering and product development expense		8		6		14		12
General and administrative expense		19		24		37		41
	$	31	$	34	$	58	$	61

Schedule of Nonvested Share Activity [Table Text Block]

	Number of Shares			Weighted Average Grant Date Fair Value
Nonvested shares outstanding, January 1, 2013		108,750		$	1.63
Granted		42,500			2.92
Vested		(53,750	)		1.61
Forfeited		-			-
Nonvested shares outstanding, June 30, 2013		97,500			1.60

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares			Weighted Average Exercise Price
Options outstanding, January 1, 2013 (219,000 exercisable)		219,000		$	3.17
Granted		-			-
Exercised		(10,000	)		3.04
Forfeited/Expired		(189,000	)		3.04
Options outstanding, June 30, 2013 (20,000 exercisable)		20,000			4.46